Portable dust collector



FIG. 1 is a top view of a portable dust collector showing my new design;

FIG. 2 is a right side view thereof;

FIG. 3 is a top, rear and left side perspective view thereof;

FIG. 4 is a top, front and right side perspective view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a rear view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a front view thereof. 

I claim the ornamental design for a portable dust collector, substantially as shown. 